noun
( -s )
Etymology: from gerund of mass (III)
1.
a. : the act or an instance of gathering or forming into a mass
this massing of troops provoked sharp protests in foreign chancelleries
b. : a massive concentration or piling up (as of words, images, or other artistic devices) for the achievement of an effect
the sense of horror is … conjured up by sheer pressure of words and massings of lights and scenery — N.L.Rothman
c. : the architectural relationship between the various masses or volumes of a building
emphasize massing , including proportion, profile, volume relationship and contour — Sheldon Cheney
2. : mass
above these … towers the magnificent massing of the clouds — G.R.Stewart
the massing on either side of the pass — American Guide Series: New Hampshire